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https://issues.apache.org/jira/browse/HDFS-11072?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15728577#comment-15728577
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SammiChen commented on HDFS-11072:
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Thank you Rakesh so much for reviewing the patch! And very good advice.
1. For replication policy ID, I will prefer to use 128 since there are a lot of
checkers checking that policy ID cannot be negative number. I guess we will not
have as many as 128 polices in future.
2. a new API {{unsetErasureCodingPolicy}} and a new sub command are very good
suggestions. Will follow it in the new patch.
3. Sure, I will improve the docs.
> Add ability to unset and change directory EC policy
> ---------------------------------------------------
>
> Key: HDFS-11072
> URL: https://issues.apache.org/jira/browse/HDFS-11072
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: erasure-coding
> Affects Versions: 3.0.0-alpha1
> Reporter: Andrew Wang
> Assignee: SammiChen
> Labels: hdfs-ec-3.0-must-do
> Attachments: HDFS-11072-v1.patch, HDFS-11072-v2.patch,
> HDFS-11072-v3.patch, HDFS-11072-v4.patch
>
>
> Since the directory-level EC policy simply applies to files at create time,
> it makes sense to make it more similar to storage policies and allow changing
> and unsetting the policy.
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